Heat the oil on "sautee" mode in your Instant Pot. Add the beef and cook until it's almost fully cooked, about 4 minutes. Add in the onion, cumin, cinnamon, smoked paprika and allspice and cook until the onions begin to soften and the beef is golden brown, about 4 minutes.
While the beef cooks, place the cauliflower into a large food processor and pulse until the consistency of rice.
Once the beef is done, add the cauliflower rice, along with all the other ingredients up to the cilantro and mint. Stir until well combined.
Cover the Instant Pot (make sure the lid is set to sealing!) and turn to manual (it should automatically be set to high pressure.) Set it for 7 minutes and let the Instant Pot do it's thing. Once cooked, let it pressure release naturally.
Once the pressure is gone, stir in the cilantro and mint and season to taste with additional salt.